Aang got frozen beacause he was told he was going to be the avatar son he ran away from the northen or southern air temple and rode his byson going somwhere but got caught up in a storm and fell of his byson aapa (that isvthe bysons name) and got frozen in a ice berg with appa hundred years later siblings saaka kitara found him and freed him and his byson from the icebergover a year ago

From Avatar Wikia:
"Fifty-three years after the end of the Hundred Year War, Aang passed away. His hundred years of being frozen in a state of suspended animation in the Avatar State eventually weighed heavily on his body, as he had burned up some of his energy during that time."

BakaOnibi you are completely right. I said the same thing. And he didn't choose to freeze himself... he was in battle-- or fighting someone anyways--- and he fell into the water. The Avatar State protected him and formed the iceberg around him, and then...well yea...he froze inside the iceberg under sea.over a year ago

Animesociety and Ribaby416 He froze when he escaped from the temple because they were going to send him away to train and so he flew away on Appa. There was a storm and he and Appa fell into the water, almost drowning but the avatar state formed an ice ball around them.over a year ago

Well, it was really old age, because Aang was actually '165', since he was 112 when he broke out the ice and 12 when he was frozen (he had been frozen for a hundred years). Just because his appearance didn't change, doesn't mean that his organs and such didn't age, hence why his body was unable to cope any more and he died.

I think it had to be a great battle between Aang and his friends fighting some powerful unknown enemies that wiped out not only him but most of his friends as well. In the Legend of Korra, not only did Aang die at a young age but Toph and Sokka was announced deceased too. Only Katata is left to tell the tale.

toph is alive she tells korra that there is still poison in her blood strem and tries to bend the poison out of her but fails because korra needed to stay still and she didn't so she teachers korra proper metal bending and at the end of the training she touches the treee and a yellow light shot down the tree and she sore some one forgot who she sore thou lolover a year ago

actually it is. In season Two the reveal more of angs past. Also in the episode Out Of The Past in season one you can see Yukone actually twisted aangs entire body. That could have led to serious problems or injuries. Either wa we'll find outover a year ago

one day,i was watching an episode of legend of korra and korra was trying to communicate with aang through meditation. when she did,he admitted he was 40 when toph called him twinkle toes. he said "toph,i'm 40 years old,so will you stop with the nicknames?" or something like that.

They said it , it was old age witch in the starting when it sais he died I tear up everytime, in the finally when he came up to Korra I freaked I was crying / smiling laughing fucking everything at the same time XD

guyofthe90s your wrong.Toph yes probably did die in battle being she was the ' esteemed chief of police ' Sokka on the other hand was a councilman member so he couldnt have died in battle. Other evidence comes from Season 1 episode Out Of The Past when Korra meditates to communicate with aang being Tenzin said " I believe Aang is trying to communicate with you " so as she did revealing the past it says during her vision " CouncilMen Sokka will anounce the verdict ".over a year ago

sokka isn't a bender watch ep 1 of avatar the legend of aang, way latter on in the series he called him self boomerang guy and was well p×ssed off about it from what i can remmember he found a master to teach him the way of the sword and when his master tells him he's ready to create a sword of his own and puts some metal in front of him but sokka told his master could he get his own metal he said I wouldn't have it any other way and with the help of aang,toph and katara he got the space rock and turned it in to a sword and then lost it because he thou it to save tophover a year ago

"Another downside to the Avatar State is the considerable mental strain it can cause to less experienced Avatars. Prior to his tutelage under Guru Pathik, Aang would often leave the Avatar State feeling horrified at what he had done under its influence. Furthermore, use of the state, at least in extraordinary circumstances, can place such a large physical strain on an Avatar's body such that their life span can be affected; thus, Aang's one hundred-year time in the iceberg contributed greatly to his eventual death at sixty-six years of age biologically, and 166 years chronologically." Quote from Avatar Wiki. Here's how he died.

It is uncertain at this point how Aang really died, it may be revealed in a future episode of Korra; we can tell that he was not really OLD when he died since the Avatars appear in the spirit world as they were when they died. Koruk, Kyoshi, Yan chen all died rather young, or middle-aged by their standards, but Roku lived a very long time and died when he was much older. When Aang appears to Korra, we see that he was not very old: he may not have lived to see his children grow to adulthood, but long enough to pass on his knowledge and skills of airbending and Air Nomad culture to Tenzin.

Well being all of these theorys are wrong or partly right i will not tell you how Aang really died. Although i still know it would give away the whole season Two so whats the points of saying? alls im gonna say is the evidence i have gastherd and Vistation to Mir Studios. No it was not of old Age Nor of Sickness, the iceberg, Or any other stupid theories. The Evidence i have collected is eith in episode 4 5 6 or 7, being there are 14 to 26 episodes for season two, is that Korra will have the urge to meditate or see a vision in her dreams or something bad will happen to her making Aang give her the power to fight an Evil Spirit by Showing her his past and what has happened to him over the years. Also in Season one Episode 9 or something entitles Out Of The Past ( one of my favorites ) Shows that Aang is chasing the escaped Yukone from court. Being before Aang takes Yukones bending away Aangs entire body is twisted thanks to the Illegal bending, Blood Bending. Luckile before is neck is snapped Aang is able to summon the Spirit world and Avatar State to take away Yukones bending forever.so Maybe later on he had some failures in kidneys or anything. Maybe that was Yulones intensions. To have a long, painful, Suffering death. Everyone says 66 is an old age to die. It is in real life. But Avatar Roku lived to be just about over 100 years old. 66 is a very old age for an Avatar to dye. So while Aang knew that the cycle for the avatar will never end gave his bending genius to his son Tenzin before he sadly passed away. After Air the Cycle starts over again making it water. Which brings young Korra to life. Luckily with enough knowledge from Tenzins father, Aang. Korra becomes a very brave Avatar and has her strugles with the spirit world just like Aang. If you Really Look into this answers will be revealed........

Mike and Bryan already confirmed that Aang's lifespan was shortened ue to his time in suspended animation. He did die of old age and you're being ignorratn by telling people they're 'wrong' when they're right.over a year ago

no one knows how Aang died becase it was not old age because it said in the episodes thet time stopped when he was in the ice cube and he did not die of an illnes because katara wold not let him die like that and he was not murderd because it said there was peace in the city and he did not die in battel because he was there at the meating in korra's vistion and the meeting was after the battel so it might revile it in The Legend of Kora . THE END :D

I remember on the game welcome to Republic city korra said being in the iceberg caught up with him. He was i it for 100 years and was 112 in avatar. Even though he did not age he was old so he had a shorter life span.

aang die because of the iceberg, in the first episode tezen said that "the time in the iceberg caught up to him so it was because he was in it for 100 years and he may have looked young but he was way old so he died earier than usually

Aang died because he spent 100 years locked into the Avatar State inside an iceberg and under the sea. The price that Aang had to pay for being the Avatar and being able to go into the Avatar State was that his life would be shortened. It wasn't age...nor illness...nor dying in battle... it was because of the Avatar State. And I am 1000% positive because it says so on the website....and it makes sense.

Well Technically (I don't mean to spoil this, sorry) Toph is still alive, you'll see in the next season. (Sorry for spoiling, but it's the facebook :)) And Aang died by old age, the age of the 60's may not seem an age to die. But since Aang was in the iceberg for like 100 years, then yes. It's not what he looks like, his organs are old, and i'm afraid he got sick for such old age. Katara was mega upset, but Aang died eventually. Not long after Korra was born, and she was the new Avatar,Aang died at somewhere around 166, I know this is sad. But he had to die eventually anyways, but anyways, Zuko is still alive, Toph is still alive, and Katara is still alive, i'm sure through the next season one of them will tell us what happened. So in the meantime, be patient. ^,^

Apparently, Aang's time in the iceberg finally caught up to him. His health wasn't too good due to the energy he burned for literally a hundred years, eventually he got sick/too old and... died. #Tearbending

But... That fact?/ theory may not be true because Katara is a healer... Hmm, mind you, maybe she just couldn't heal him. She couldn't heal Korra when she had the poison still stuck inside of her...over a year ago

He died because somehow, he got frozen in Avatar State for 100 years. This eventually took toll on his body, as he had burned up some of his energy.Near end of his days he tasked the White Lotus to search for and watch over the next avatar. He died at the biological age of 66( physical 166 = 12+100+54).